March 30, 2018

Mountain Weather Forecast


Time and Day:  0715 Friday

The Snapshot: Light rain/snow today, ending Friday afternoon. Dry and partly cloudy Saturday with mild temperatures.

The Science

Current Observations:  Mixed precip overnight, with rain/freezing rain/light snow at various elevations. No snow accumulation. Winds are moderate from the west. Skies are obscured and the barometer has dropped a bit from yesterday, currently at 1016.

The Forecast:  A weak front in NW flow aloft dropped out of British Columbia overnight, the remnants of which are affecting Washington this morning. Lingering showers will end Friday afternoon. The airmass dries out and stabilizes a bit on Saturday for a likely dry day, with sunbreaks.  


The Long Range: A cool trough approaches on Sunday from the NW. Temperatures will come down with freezing levels back around 2000’ for Sunday and Monday with light snow accumulations possible.

24hr values daily 4am to 4am.
Precipitation:
Friday’s   24hr
water: <.25    Snow: trace

Saturday’s   24hr
water: 0     Snow: 0

Trend and Timing:
Mixed precip Friday, ending Friday afternoon.

Temperature:
Low: 29   High: 36
Freezing Level: 4500’

Trend and Timing:   
Steady temperatures Friday.
 
Winds
Base: W 10-15
Ridge Top: W 15-25

Trend and Timing:
  Moderate winds Friday morning, easing to light WNW Friday night.

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